Answer:
pythagoras therom
a) square root 8²+15²=17
b)square root 20²+21²=29
use this formula
1 no .H^2=p^2+b^2
H^2=8^2+15^2
H^2=64+225
H^2=289
H=
H=17
2 no. H^2=P^2+B^2
H^2=20^2+21^2
H^2=400+441
H^2=841
H=29
Step-by-step explanation:
Hope this helps u!!
Perpendicular lines<span> are two or more lines that intersect at a 90-degree angle, like the two lines drawn on this graph, and the x and y axes that orient them.</span>
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