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ozzi
2 years ago
10

State if the triangles in each pair are similar. If so, state how you know they are similar.

Mathematics
1 answer:
Zarrin [17]2 years ago
6 0

Answer:

<em>A) similar; SAS similarity.</em>

Step-by-step explanation:

<u>SAS Triangle Similarity</u>

The SAS criterion for triangle similarity states that if two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar.

We are given two triangles BCD and JKL. Sides DB and JL have a ratio of 90/20 = 4.5

Sides JK and BC have a ratio of 81/18 = 4.5

Since both sides are proportional and their included angle of 43° are congruent, then both triangles are similar, SAS similarity.

A) similar; SAS similarity.

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3 years ago
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3 years ago
Convert 72° 36' 45" into centesimal measurement.​
zavuch27 [327]

Answer:

Answer:

8

Step-by-step explanation:

x= centesimal angle (100 degrees in a

right angle)

y= sexagesimal angle (90 degrees in a

right angle)

=

x - y = 15

xx90/100 = y

xx9/10 = y

X - XX9/10 = 15

10x/10 - 9x/10 = 15

=

X/10 = 15

x= 150

y = 150x9/10 = 15x9 = 135

=

using centesimal system:

the sum of all external angles in a

polygon is 400 degrees (a full circle).

one external angle is the complement

of one internal angle to 200 degrees =

200-150=50 degrees.

to find the number of sides of the

polygon we need to find the number of

angles or corners. and that is how many

external angles fit into the full circle.

n = 400/50 = 8

=

the polygon has 8 sides

5 0
2 years ago
PLZ HELP AND DONT TELL ME UR OPINON I WANT HELP WITH THE ANSWER
Serhud [2]
It should be 132, area of parallelogram is same as rectangle actually, it just tilted a bit, so is 11 x 12
3 0
2 years ago
Read 2 more answers
A triangle has one angle that measures 23 degrees, one angle that measures 43 degrees, and one angle that measures 114 degrees.
nikdorinn [45]

Answer:

D Scalene triangle

Step-by-step explanation:

All angles are different, there the sides of triangle will be different which is a Scalene triangle

7 0
2 years ago
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