Page 368 - Math_Genius_V1.0_C7_Flipbook

E:\Working\Focus_Learning\Math_Genius-7_(12-11-2024)\Open_File\Answer\Answer
\ 03-Feb-2025 Surender Prajapati Proof-6 Reader’s Sign _______________________ Date __________

1 1 1 2 5. Shadow diagram Name of 2D Shapes
4. 2 3 5 4 3 2 4 5 5 3 formed in Shadow
6 6 4 6
Square

5.

Parallelogram
Quick Check
(a) 4 (b) 8 (c) 9
Think and Answer

Circle

Practice Time 12C Rectangle
1. (a) 6 (b) 8 (c) 23
2. Solid Its views
1 2 3 Triangle
Top
Top Side Front
Side
6. (a) Cone, Triangular pyramid, Birthday cap, Ice cream cone.
Front (b) Rectangular Prism, Brick, Wooden box, Cylinder from side
Top (c) Cylinder from top, Cone from base, Sphere, ball.
Side Front (d) Cube, Dice, Square prism.
Top
Mental Maths
Side Triangular Pyramid
Chapter Assessment
Front
A. 1. (c) 2. (a) 3. (b) 4. (c)
Top 5. (c) 6. (a) 7. (a)
Side Front Top B. 1. (d) 2. (b) 3. (a)
C. 1. Cube 2. Edge 3. Triangle 4. Cone
Side
5. Triangular Prism 6. 10, 15, 7
D. 1. 8 cm × 2 cm × cm
Front 3. (a) (b)
Top
Side Front
Top
Side

Front
Top 4. (a) Rectangle (b) Rectangle (c) Circle (d) Triangle
5. (a) oval shape, circular or oval shape (b) rectangle, rectangle
Top (c) rectangle, rectangle or square or circle
(d) oval shape, circular or oval shape
3. (a) (b) Side Brain Sizzlers
Side
(a) (i) GH (ii) DC (b) (i) 2 + 1 (ii) 3 + 4
Front Chapter 13: Perimeter and Area
Front
Top Top Let’s Recall
1. (a) Perimeter = 16 cm Area = 15 cm 2
(b) Breadth = 10 cm Area = 80 cm 2
(c) Length = 18 m Perimeter = 60 m
(d) Length = 21.5 cm Area = 311.75 cm 2
(c) (d) Side
Side 2. (a) Perimeter = 32 cm Area = 64 cm 2
(b) Perimeter = 13.6 m Area = 11.56 m 2
(c) Perimeter = 312 mm Area = 6084 mm 2
3. 72 cm 4. Perimeter = 104 cm, Area = 576 cm 2
Front Front 5. 289 cm 2
4. (a) rectangle, rectangle (b) circle, circle 6. Cost of fencing 3 rounds of fencing = `18,360.
(c) rectangle, circle (d) triangle, circle Cost of laying the grass in the field = `72,828.

Mathematics-7 366