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3 years ago

10

Pls help geometry please and thank you

2 answers:

viktelen [127]3 years ago

8 0

1. is given. 2. is reflective property. 4. is alternate interior angles. and 5. is definition of a midpoint. (the answer above has 2 and 4 swapped. the statement for 4 is giving you interior angles, hence the reason for four being alternate interior angles. this could be wrong but i don’t believe it is.)

Elena L [17]3 years ago

4 0

#one would be given, #2 is alternate interior, and number 4 would be reflexive property

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PLEASE PLEASE ANSWER!

muminat

The area of the shaded region is $$8(\pi \ -\sqrt{3})\ \text{cm}^2$ .

Solution:

Given radius = 4 cm

Diameter = 2 × 4 = 8 cm

Let us first find the area of the semi-circle.

Area of the semi-circle = $\frac{1}{2}\times \pi r^2$

$$=\frac{1}{2}\times \pi\times 4^2$

$$=\frac{1}{2}\times \pi\times 16$

Area of the semi-circle = $$8\pi$ cm²

Angle in a semi-circle is always 90º.

∠C = 90°

So, ABC is a right angled triangle.

Using Pythagoras theorem, we can find base of the triangle.

$AC^2+BC^2=AB^2$

$AC^2+4^2=8^2$

$AC^2=64-16$

$AC^2=48$

$AC=4\sqrt{3}$ cm

Base of the triangle ABC = $4\sqrt{3}$ cm

Height of the triangle = 4 cm

Area of the triangle ABC = $\frac{1}{2}\times b \times h$

$$=\frac{1}{2}\times 4\sqrt{3} \times 4$

Area of the triangle ABC = $8\sqrt{3}$ cm²

Area of the shaded region

= Area of the semi-circle – Area of the triangle ABC

= $$8\pi \ \text{cm}^2-8\sqrt{3}\ \text{cm}^2$

= $$8(\pi \ -\sqrt{3})\ \text{cm}^2$

Hence the area of the shaded region is $$8(\pi \ -\sqrt{3})\ \text{cm}^2$ .

3 0

3 years ago

What is 653,500 rounded to the nearest thousand

pochemuha

It’s 654,000. Because you round up at 5

7 0

3 years ago

Read 2 more answers

Write each number as a sum of integers in three different ways.1. 52. +153. O

Verdich [7]

Solution:

Given:

$\begin{gathered} 5 \\ +15 \\ 0 \end{gathered}$

An integer is a whole number (not a fractional number) that can be positive, negative, or zero.

Writing each number as a sum of integers in three different ways,

$\begin{gathered} 5=0+5 \\ 5=3+2 \\ 5=-2+7 \\ \\ \\ +15=11+4 \\ +15=8+7 \\ +15=1+14 \\ \\ \\ 0=-2+2 \\ 0=-5+5 \\ 0=-1+1 \end{gathered}$

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Ludmilka [50]

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3 years ago

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Debora [2.8K]

Answer:

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Step-by-step explanation:

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