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kvv77 [185]
3 years ago
6

Help ASAP! Abs explain

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
3 0

Answer: A) Hypotenuse-Leg

This abbreviates to HL

==============================================

Explanation:

Triangle BEC is a right triangle due to the square angle marker at angle E. This is a 90 degree angle. The side opposite the 90 degree angle is always the longest side of the right triangle, aka the hypotenuse. For triangle BEC, that is side BC. Note the tickmark here.

There's a similar tickmark on side DC, which is also a hypotenuse, but for triangle DEC. The tickmarks indicate BC = DC are congruent hypotenuse lengths. That forms the "H" in "HL".

The congruent pair of legs would be the shared overlapping side EC. We can say that EC = EC due to the reflexive property. So we have the "L" of "HL"

Using BC = DC and EC = EC, we have enough information to use HL to prove triangle BEC is congruent to triangle DEC.

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Which of the following is a rational number?
olga nikolaevna [1]

Answer:

B

Step-by-step explanation:

when you solve B you get 15 and for all the other ones you get a non-terminating decimal

8 0
2 years ago
Solve the following triangle completely.
RUDIKE [14]

Answer:

The answers is below in bold.

Step-by-step explanation:

(a) A = 180 - 25.6 - 124.4 = 30 degrees.

Next use the Sine Rule:

b / sin B = c / sin C

b / sin 25.6 = 39.2/sin 124.4

b = (39.2 * sin 25.6) / sin 124.4

b = 20.53 m.

Also

a / sin A = c / sin C

a / sin 30 = 39.2 / sin 124.4

a =  (39.2 * sin 30 / sin 124.4

a = 23.75 m.

b). This is solved in a similar way to (a).

First find angle C  using the sine rule.

Then you will know angle A  from the 180 degree Rule.

Then you can find the length of  a using the Sine Rule.

4 0
3 years ago
A backpack normally costs $25 but it is on scale for $16.25. What percentage is on discount? Please help, I have a test rn:((​
joja [24]

Answer: 16%

Step-by-step explanation:

$25 - $21 = $4

Percentage = 100[discount / (original price)] % = 100($4 / $25) % = 16%

3 0
3 years ago
Plzzz help I would really appreciate it !!!!
Elena L [17]
Wait I got this too lol I’m looking for the answer too
5 0
3 years ago
Plz help me well mark brainliest if correct!....
LUCKY_DIMON [66]

Answer:

C

Step-by-step explanation:

B can immediately be eliminated because it has an area of 14.

A and C have an area of 10.

So add the sides.

C:

4 + 4 + 1 + 1 + 2 + 2 + 1 + 3

= 18

A: 3 + 3 + 2 + 2 + 1 + 1 + 1 + 1 =

10 + 4 =

14

7 0
3 years ago
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