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Harlamova29_29 [7]
3 years ago
14

Find the value of a and b

Mathematics
1 answer:
Kipish [7]3 years ago
4 0

Answer:

Step-by-step explanation:

In triangle ADC,

b+50+60=180(sum of angles of triangle equals 180)

or,b=180-110

▪b=70

also,

In triangle ABD,

angleA = 30+50=80

now,

a+80+60=180(sum of angles of traingle equals 180)

or,a=180-140

▪a=40'

Ans.

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<h3>Answer:  h^2 + 4h</h3>

-------------------

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===========================================================

Part B

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Similarly, along the vertical side we'd have the h go to h+3+3 = h+6

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Multiply these expressions to find the area

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You can also use the box method or the FOIL rule as alternative routes to find the area.

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