diff --git a/lesson_3/Debug/lesson_3 b/lesson_3/Debug/lesson_3
deleted file mode 100755
index 85c73ed..0000000
Binary files a/lesson_3/Debug/lesson_3 and /dev/null differ
diff --git a/lesson_3/Debug/main.d b/lesson_3/Debug/main.d
deleted file mode 100644
index 32d5ad1..0000000
--- a/lesson_3/Debug/main.d
+++ /dev/null
@@ -1,6 +0,0 @@
-main.o: ../main.cpp ../exercise_1.hpp ../exercise_2.hpp ../exercise_3.hpp \
- ../exercise_4.hpp
-../exercise_1.hpp:
-../exercise_2.hpp:
-../exercise_3.hpp:
-../exercise_4.hpp:
diff --git a/lesson_3/Debug/main.o b/lesson_3/Debug/main.o
deleted file mode 100644
index 877cfb0..0000000
Binary files a/lesson_3/Debug/main.o and /dev/null differ
diff --git a/lesson_3/Debug/makefile b/lesson_3/Debug/makefile
deleted file mode 100644
index 4ee7c15..0000000
--- a/lesson_3/Debug/makefile
+++ /dev/null
@@ -1,57 +0,0 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
--include ../makefile.init
-
-RM := rm -rf
-
-# All of the sources participating in the build are defined here
--include sources.mk
--include subdir.mk
--include objects.mk
-
-ifneq ($(MAKECMDGOALS),clean)
-ifneq ($(strip $(CC_DEPS)),)
--include $(CC_DEPS)
-endif
-ifneq ($(strip $(C++_DEPS)),)
--include $(C++_DEPS)
-endif
-ifneq ($(strip $(C_UPPER_DEPS)),)
--include $(C_UPPER_DEPS)
-endif
-ifneq ($(strip $(CXX_DEPS)),)
--include $(CXX_DEPS)
-endif
-ifneq ($(strip $(CPP_DEPS)),)
--include $(CPP_DEPS)
-endif
-ifneq ($(strip $(C_DEPS)),)
--include $(C_DEPS)
-endif
-endif
-
--include ../makefile.defs
-
-# Add inputs and outputs from these tool invocations to the build variables 
-
-# All Target
-all: lesson_3
-
-# Tool invocations
-lesson_3: $(OBJS) $(USER_OBJS)
-	@echo 'Building target: $@'
-	@echo 'Invoking: GCC C++ Linker'
-	g++  -o "lesson_3" $(OBJS) $(USER_OBJS) $(LIBS)
-	@echo 'Finished building target: $@'
-	@echo ' '
-
-# Other Targets
-clean:
-	-$(RM) $(CC_DEPS)$(C++_DEPS)$(EXECUTABLES)$(C_UPPER_DEPS)$(CXX_DEPS)$(OBJS)$(CPP_DEPS)$(C_DEPS) lesson_3
-	-@echo ' '
-
-.PHONY: all clean dependents
-
--include ../makefile.targets
diff --git a/lesson_3/Debug/objects.mk b/lesson_3/Debug/objects.mk
deleted file mode 100644
index 742c2da..0000000
--- a/lesson_3/Debug/objects.mk
+++ /dev/null
@@ -1,8 +0,0 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
-USER_OBJS :=
-
-LIBS :=
-
diff --git a/lesson_3/Debug/sources.mk b/lesson_3/Debug/sources.mk
deleted file mode 100644
index a7f166f..0000000
--- a/lesson_3/Debug/sources.mk
+++ /dev/null
@@ -1,27 +0,0 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
-C_UPPER_SRCS := 
-CXX_SRCS := 
-C++_SRCS := 
-OBJ_SRCS := 
-CC_SRCS := 
-ASM_SRCS := 
-CPP_SRCS := 
-C_SRCS := 
-O_SRCS := 
-S_UPPER_SRCS := 
-CC_DEPS := 
-C++_DEPS := 
-EXECUTABLES := 
-C_UPPER_DEPS := 
-CXX_DEPS := 
-OBJS := 
-CPP_DEPS := 
-C_DEPS := 
-
-# Every subdirectory with source files must be described here
-SUBDIRS := \
-. \
-
diff --git a/lesson_3/Debug/subdir.mk b/lesson_3/Debug/subdir.mk
deleted file mode 100644
index c456c4a..0000000
--- a/lesson_3/Debug/subdir.mk
+++ /dev/null
@@ -1,24 +0,0 @@
-################################################################################
-# Automatically-generated file. Do not edit!
-################################################################################
-
-# Add inputs and outputs from these tool invocations to the build variables 
-CPP_SRCS += \
-../main.cpp 
-
-OBJS += \
-./main.o 
-
-CPP_DEPS += \
-./main.d 
-
-
-# Each subdirectory must supply rules for building sources it contributes
-%.o: ../%.cpp
-	@echo 'Building file: $<'
-	@echo 'Invoking: GCC C++ Compiler'
-	g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@)" -o "$@" "$<"
-	@echo 'Finished building: $<'
-	@echo ' '
-
-
diff --git a/lesson_3/exercise_1.hpp b/lesson_3/exercise_1.hpp
index 252dd91..a3b6dac 100644
--- a/lesson_3/exercise_1.hpp
+++ b/lesson_3/exercise_1.hpp
@@ -19,7 +19,7 @@ class Figure
 {
 public:
 	virtual float area() = 0;
-	virtual ~Figure() = 0;
+	virtual ~Figure() { };
 };
 
 class Parallelogram : public Figure
@@ -54,7 +54,19 @@ public:
 
 class Circle : public Figure
 {
+private:
+	float m_radius;
+public:
+	Circle(float radius) : m_radius(radius)	{ }
 
+	float area()
+	{
+		float area = PI * pow(m_radius, 2);
+
+		std::cout << "Площадь круга равна " << area << std::endl;
+
+		return area;
+	}
 };
 
 class Rectangle : public Parallelogram
diff --git a/lesson_3/main.cpp b/lesson_3/main.cpp
index a3019d9..40a5fd6 100644
--- a/lesson_3/main.cpp
+++ b/lesson_3/main.cpp
@@ -1,4 +1,5 @@
 #include <iostream>
+#include <vector>
 #include "exercise_1.hpp"
 #include "exercise_2.hpp"
 #include "exercise_3.hpp"
@@ -8,5 +9,11 @@ using namespace std;
 
 int main()
 {
+	// Exercise 1
 
+	Parallelogram A(15, 9);
+
+//	Figure* figures[5];
+
+	return 0;
 }