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HELP is a rectangle, If ∠4= 78^0, what is the measure of ∠5

HELP Is A Rectangle If 4 780 What Is The Measure Of 5 class=

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Smartguy70viz

Answer:

pls brainlist

Step-by-step explanation:

2a+2b=36 a+b=18

tan((180-78)/2)=a/b a=0.9030861494×b

b=18/1.9030861494=9.4583211621cm

a=8.5416788379cm

8.5416788379 × 9.4583211621=80.7899417124cm² Answer