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Liono4ka [1.6K]
2 years ago
8

An Isosceles triangle is shown below. What is the size of angle a°.

Mathematics
2 answers:
gtnhenbr [62]2 years ago
5 0

Answer:

Sue I dig diy8dg7wuusur

Sergeeva-Olga [200]2 years ago
4 0

Step-by-step explanation:

without seeing a picture I'm guessing 45 45, and 90

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I need help on this problem
zhannawk [14.2K]
We know the length and width. We're just  trying to find all of the area in between. To find area, we do length*width. Length is 11.5 and the width is 10.75. 11.5*10.75=123.625 ft^2
3 0
3 years ago
Express as a sum: 15–7
kirill115 [55]
-7+15. this is what i think it is.
5 0
3 years ago
Read 2 more answers
Find the measure of angle BCD in the following parallelogram. what's does BCD equal
DiKsa [7]

Answer:

120 degrees

Step-by-step explanation:

This is a quadrilateral, and by definition, the sum of all the interior angles is 360. So, we can just sum up all the expressions and set them equal to 360:

2x + x + 2x + x = 360

Combine like terms and solve for x:

6x = 360

x = 360/6 = 60

<BCD = 2x = 2 * 60 = 120

Thus, the answer is 120 degrees.

Hope this helps!

4 0
3 years ago
Triangle ABC is transformed to obtain triangle A′B′C′:
Lisa [10]

Answer:

Option C is right.

Step-by-step explanation:

Given is a graph with two triangles marked on it.

Triangle ABC is in the I quadrant with vertices (2,2) (2,10) and (8,12)

Triange A'B'C' is in the III quadrant with vertices (-1,-1), (-1,-5) and (-4,-6)

On comparison we find corresponding side of AB is A'B'

Length of AB = 8 and Length of A'B' = 4.

Hence A'B'C' is obtained by dilating ABC by a scale factor of 1/2.

Now since moved to III quadrant from I quadrant we find that there is a rotation of triangle ABC about the origin.  The degree of rotation is 180 degrees.

Hence A'B'C' is obtained by dilating ABC by a scale factor of 1/2 and then rotating it about the origin by 180 degrees

8 0
3 years ago
15. What is the solution to 3x - 52 28?
Pani-rosa [81]

Answer:

x> 30

Step-by-step explanation:

+ First, is the inequation 3x - 52 > 28.

+ If Yes, so we can solve:

3x - 52 > 28

3x - 52 + 52 > 28 +52

3x > 90

3x/3 > 90/3 (divide both sides by 3>0)

x > 30

4 0
2 years ago
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