2 years ago

What’s the perimeter of this rectangle?

Mathematics

2 answers:

Angelina_Jolie [31]2 years ago

8 0

The perimeter of the rectangle is 18

iVinArrow [24]2 years ago

5 0

The perimeter of this rectangle is 18.

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2 years ago

in parallelogram ABCD, AC is diagonal, the measure <ABC is 40°, and the measure of <ACD IS 57°. what is the measure of &lt

Nutka1998 [239]

Answer: $\angle CAD = 83^\circ$ Option D

Step-by-step explanation:

In this question we use properties of parallelogram and angle sum property of a triangle.

In parallelogram ABCD

$\angle ABC=40^\circ$

As, we know that opposite angles of parallelogram are equal

Therefore,

$\angle ABC =\angle ADC =40^\circ$

Now, in triangle ADC

We know that sum of all the angles of a triangle is $=180^\circ$

$\angle ACD +\angle ADC +\angle DAC =180^\circ$

$57^\circ +40^\circ +\angle DAC =180^\circ$

$97^\circ + \angle DAC = 180^\circ$

Subtracting 97 from both sides we get

$\angle DAC = 180^\circ - 97^\circ$

$\angle DAC = 83^\circ$

Measure of $\angle CAD = 83^\circ$

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ElenaW [278]

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2 years ago

jim walks at an average rate of 4 miles per hour. at this rate how long will it take jim to walk 10 miles?

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Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below. (3 – 6y2)(y2 + 2) = 3(y2) + (–6y2)(2) = 3y2 – 12y2 = –9y

vladimir2022 [97]

Answer:

No, She did not use the distributive property correctly.

Step-by-step explanation:

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2 years ago