For a triangle the area is given as:

Re-arrange / solve for 'h':

Substitute known values:

Compute:

43x5= 215
215 pupils
215-200=15
15 seats
Answer:
5
Step-by-step explanation:
92/17= 5.4
there are 5 total 17s in 92.
Answer:
x = 16
Step-by-step explanation:
Δ AED and Δ ACB are similar thus the ratios of corresponding sides are equal, that is
=
, substitute values
=
( cross- multiply )
11x = 8(6 + x) ← distribute
11x = 48 + 8x ( subtract 8x from both sides )
3x = 48 ( divide both sides by 3 )
x = 16