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pantera1 [17]
3 years ago
8

A) 60° B) 85° C) 96° D) 40°​

Mathematics
2 answers:
RideAnS [48]3 years ago
8 0

Answer:

A)60°

Step-by-step explanation:

a straight line is 180° then

if a line bisect it in to a half it become 90°

then

the exterior angle of a triangle is equal to the sum of two interior angles

this means 150°-90°=60°

rjkz [21]3 years ago
5 0

Answer: A) 60

Step-by-step explanation:

The line at the top signifies 180 degrees, as does any straight line. The 150° that intersects with P tells you that P must be 30 degrees, as 180 - 150 = 30.

The three angles of a triangle must always equal 180°. Angle R tells you that it’s 90°, shown by the square instead of a curve. If you subtract the value of P we found before, and the value of R we just found, you get your answer.

180 - 30 - 90 = 60.

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Given, the ratio of blocks A, B, C,D are in the ratio 4:7:3:1

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