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3 years ago

Find the missing angle measure in ΔQRS.

1 answer:

5 0

Sum of all the angles in a triangle is 180°.
Therefore in ΔQRS,
R + S +Q = 180°
61° + 29° + Q = 180°
Q = 180 - 61 -29
Q = 90°
Hence option A is correct.
Hope this helps, have a nice day!

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Help! what is the surface area of the prism? 128in^2, 768in^2, 384in^2, or 480in^2

Nimfa-mama [501]

Option C: $384 \ in^2$ is the surface area of the prism

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Given figure is a triangular prism.

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The formula to find the surface area of the triangular prism is given by

$S A=b h+(s 1+s 2+s 3) H$

where b is the base of the triangle,

h is the height of the triangle,

$s1,s2,s3$ are the three sides of the triangle and

H is the height of the prism.

Let us substitute the values $b=16$ , $h=6$ , $s1=16$ , $s2=10$ , $s3=10$ and $H=8$ in the formula, we get,

$SA=16(6)+(16+10+10)(8)$

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Hence, Option C is the correct answer.

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