Question

Find the perimeter of the figure.

31 cm
18 cm
25 cm
Drawing not to scale
C.
b. 80 cm
68 cm
d.
87 cm
a.
74 cm
I need help!

Answer 1

a and c

Explanation:

The perimeter is the sum of the 3 sides, that is

perimeter = 25 + 18 + 31 = 74 cm → a

-------------------------------------------------------------------

The opposite sides of a rectangle are equal, so

perimeter = (2 × 10) + (2× 15) = 20 + 30 = 50 ft → c

Answer 2

41:-

Its a triangle

`\\ \sf\longmapsto Perimeter=31+18+25`

`\\ \sf\longmapsto Perimeter=48+25`

`\\ \sf\longmapsto Perimeter=73cm`

42:-

Its rectangle

`\\ \sf\longmapsto Perimeter=2(L+B)`

`\\ \sf\longmapsto Perimeter=2(15+10)`

`\\ \sf\longmapsto Perimeter=2(25)`

`\\ \sf\longmapsto Perimeter=50ft`