Question

please solve ques 9 and 10​

Answer 1

Answer:

Step-by-step explanation:

9.perimeter= 21/4 cm

So each side=1/3*21/4=7/4 cm

10.perimeter= 12 cm

base=7/2 cm

let the equal side =x

Then x+x+7/2=12

2x+7/2=12

multiply by 2

4x+7=24

4x=24-7=17

so x=17/4 cm