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Ooksanaa Uklimovg
Ooksanaa Uklimovg

My Homework Lesson 5 Tile Rectangles To Find Area


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My Homework Lesson 5 Tile Rectangles To Find Area


Welcome to the HMH math activities hub where you can find engaging math lessons and activities for every grade level. Explore the activities shown below, or visit our full teaching resources page to find even more ideas for your classroom and school.


NCERT Solutions for Class 5 Maths Chapter 3 Page 391.Make big squares and rectangles like this to find the area faster.Ans. For (P) Area= 5 + 2/2 + 7= 5 + 1 + 7 = 13 square cmFor (Q) Area = 7 + 2/2 + 4= 7 + 1 + 4 = 12 square cmFor (R) Area = 6 + 0/2 + 9= 6 + 9 = 15 square cmFor (S) Area == 4 + 0/2 + 6= 4 + 6 = 10 square cmFor (T) Area = 96 + 4/2 + 21= 96 + 2 + 21 = 119 square cm


2.And what about the red triangleAns. The area of red triangle is half of the area of rectangle.Hence, area of red triangle = 10 square cm.Ah, in it there are two halves of two different rectangles!


3.Now you find the area of the two rectangles Sadiq is talking about. What is the area of the red triangle Explain.Ans. Area of two rectangles = Area of red rectangle + area of green rectangle= (3 x 4) + (4 x 2)= 12 + 8 = 20 square cm Hence, area of red triangle together= Half of area of both rectangles together= 1/2 x 20 = 10 square cm.Hence, both triangles have the same area.


4.Yes you are right. And you know what! You can draw many more triangles of area 10 square cm in this rectangle. Try drawing them. Help Sadiq in finding some more such triangles. Draw at least 5 more.Ans.


(b)Draw one straight line in this rectangle to divide it into two equal rectangles.What is the area of each of the smaller rectanglesAns.A line can be drawn as shown in this figure to divide the given rectangle into two equal rectangles. Similarly, a horizontal line can also be drawn to divide the given rectangle into two equal rectangles.Area of each smaller rectangle=1/2 x Area of bigger rectangle1/2 x 20 = 10 square cm 1e1e36bf2d






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