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3 years ago

PlZ HELP ME ITS URGENTA.cannot be determinedB.47° C.63°D.70°

Mathematics

2 answers:

Salsk061 [2.6K]3 years ago

7 0

Answer:

C. 63 degrees

Step-by-step explanation:

When 2 triangles are congruent, no matter what postulate they are congruent by, all their sides and angles will be congruent.

We know that triangle ABC is congruent to triangle DEF. Their angles and sides are congruent and corresponding.

We know that angle A is 70 degrees, angle B is 47 degrees and angle C is 63 degrees.

Angle C and angle F correspond. Therefore, angle C and angle F are congruent. Angle C is 63 degrees, therefore angle F must be 63 degrees.

C. 63 degrees is the correct answer.

Crazy boy [7]3 years ago

3 0

Answer:

Step-by-step explanation:

the second answer is correct

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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Oliga [24]

On the bottom left, the answer is subtraction property of equality because you need to subtract 4x to the 7x to simplify the equation.

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2 years ago

Find the area of the trapezoid to the nearest tenth.

erica [24]

Answer:

2.2 metres squared

Step-by-step explanation:

We need to find the area of this trapezoid.

The area of a trapezoid is denoted by:

$A=\frac{(b_1+b_2)h}{2}$ , where $b_1$ and $b_2$ are the parallel bases and h is the height

Here, we already know the lengths of the two bases; they are 0.9 metres and 2.3 metres. However, we need to find the length of the height.

Notice that one of the angles is marked 45 degrees. Let's draw a perpendicular line from top endpoint of the segment labelled 0.9 to the side labelled 2.3. We now have a 45-45-90 triangle with hypotenuse 2.0 metres. As one of such a triangle's properties, we can divide 2.0 by √2 to get the length of both legs:

2.0 ÷ √2 = √2 ≈ 1.414 ≈ 1.4

Thus, the height is h = 1.4 metres. Now plug all these values we know into the equation to find the area:

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The answer is thus 2.2 metres squared.

<em>~ an aesthetics lover</em>

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3 years ago

PlZ HELP ME ITS URGENTA.cannot be determinedB.47° C.63°D.70°​

PlZ HELP ME ITS URGENTA.cannot be determinedB.47° C.63°D.70°