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3 years ago

What is the value of b? You may assume that the ray is tangent to the circle. A) 126 B)63 C)54 D)94

Mathematics

1 answer:

Arlecino [84]3 years ago

6 0

Answer:

Option B 63°

Step-by-step explanation:

we know that

If the ray is tangent to the circle

then

a°+b°=90° -----> by complementary angles

Remember that

The inscribed angle measures half that of the arc comprising

<u><em>Find the measure of inscribe angle a</em></u>

∠a=(1/2)[54°]=27°

Find the measure of angle b

a°+b°=90°

substitute

27°+b°=90°

b°=90°-27°=63°

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What is 36/100 added with 4/10

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Answer:

0.76 or 19/25

Step-by-step explanation:

Convert 4/10 so that it has a common denominator with 36/100.

4/10 x 10/10 = 40/100

Now that the denominator is the same, just add the top values.

40/100 + 36/100 = 76/100

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Two angles of a quadrilateral measure 140° and 80°. The other two angles are in a

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3 years ago

A carpenter wants to build a rectangular box with square sides in which to put round things. the material for the bottom costs $

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Answer: $1.627\times 1.627\times 1.88\ ft^3$

Step-by-step explanation:

Given

Suppose side face have a dimension of l\times l

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volume $V=l^2\cdot h$

$h=\frac{V}{l^2}$

volume $V=5 ft^3$

Area of side wall is $A_s=l^2$

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differentiate C w.r.t l to get minima or maxima

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