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3 years ago

In a parallelogram, explain how opposite sides are congruent

1 answer:

6 0

There's a theorem that states:
"If a quadrilateral is a parallelogram, it has 2 sets of opposite sides congruent."

Hope this helps ;)

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Please solve and give me the answer. Please show me how you solved it too.

Evgen [1.6K]

Answer:

x = 24

Step-by-step explanation:

The sum of the measures of the angles of a triangle is 180°.

4x + x + 60 = 180

5x + 60 = 180

5x = 120

x = 24

3 0

3 years ago

Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations).

Alla [95]

Area of shaded region is 18π square unit.

Step-by-step explanation:

Given :- A circle with center O and radius 9 cm

To Find :- area of shaded region that is area of ABC

Solution : - BC = 9 cm

∠ABC = 80° = Ф

so, area of sector = πr²Ф / 360°

= (π×9×9×80) /360°

= 18π square unit

hence, area of shaded region is 18π square unit

7 0

3 years ago

The surface area of the square pyramid is 16 square inches. Find the value of x.

cluponka [151]

Answer:

x=6 2/5

Step-by-step explanation:

I don't know how to explain other than doing the math of (x*5)/2=16

3 0

3 years ago

Read 2 more answers

What order does those chooses go based off the questions?

Karolina [17]

Answer:

Step-by-step explanation:

its 13

4 0

3 years ago

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

BabaBlast [244]

Answer: $2.535*10^{10}$

Step-by-step explanation:

1. By definition, scientific notation has the following form:

$a*10^{b}$

Where:

a is a number between 1 and 10 but does not include 10.

b an integer.

2. When you multiply 3.25 by 7.8 the result is 25.35 and when you multiply $10^{3}$ by $10^{6}$ , you obtain $10^{9}$ , but to write ree thsult in scientific notation, the decimal point must be after the first digit. Therefore, you must move the decimal point one place to the left. So, the exponent changes from 9 to 10:

$(3.25*10^{3})(7.8*10^{6})=2.535*10^{10}$

3 0

2 years ago