Question

3. There is slide in a park. One of
"KEEP THE PARKOREA
wall are 15
mm and mind the
KEEP THE PARK
GREEN AND CLEAN​

Answer 1

Step-by-step explanation:

A lithosphere is the rigid, outermost shell of a terrestrial-type planet or natural satellite. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater.

I hope it is helpful for you

Answer 2

Given:

⇒Sides: a=15m, b=11m and c=6m

⇒P=15+11+6=32m

⇒Semi perimeter=S=

2

32

, S=16m

⇒A=

s(s−a)(s−b)(s−c)

(Heron's formula)

⇒A=

16(16−15)(16−11)(16−6)

⇒A=

16×1×5×10

=

800

=20

2

m

2