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KIM [24]
2 years ago
7

I will mark you as brainliest if you're answer is correct​

Mathematics
1 answer:
GalinKa [24]2 years ago
8 0

Answer:

perimeter = 28.13 cm

Step-by-step explanation:

Calculate the length of a line drawn from A to C.

sin 85 = b/8, b = 7.97

cos 85 = c/8, c = 0.697

AC² =7.97² + (6 + 0.697)² = 63.52 + 44.85 = 108.37

AC = 10.41

Now you have a right triangle ADC with a known hypotenuse and  one leg.

Using the Pythagorean theorem:

DC² = 10.41² - 5²

DC² = 108.37 - 25 = 83.37

DC = 9.13 cm

perimeter = 5 + 6 + 8 + 9.13 = 28.13 cm

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harina [27]

Given

∠MQL = 180° and ∠XQR = 180°

Find out which equation  be used to solve problems involving the relationships between ∠XQL and ∠MQR.

To proof

Vertically opposite angle

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As shown in the diagram

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The problem used to solve problems involving the relationships between ∠XQL and ∠MQR  is (48 +1b) = (54 - 1b).

option ( A) is correct.

Hence proved  




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