<h3>
♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>
➷ As the two lengths are a, this means it is an isosceles triangle.
The two unknown angles would be equal so we can calculate them:
(angles in a triangle equal 180 degrees)
(180 - 90) / 2 = 45
Now we can use the sine rule to calculate the length a
(6 / sin(90)) x sin(45) = a
a = 4.242640687
To one decimal place, your answer would be:
a = 4.2mm
<h3><u>
✽</u></h3>
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
↬ ʜᴀɴɴᴀʜ ♡
Explanation:
<u>Statement</u> . . . . <u>Reason</u>
1. ∠1 ≅ ∠2, ∠J ≅ ∠K . . . . given
2. AB ≅ BA . . . . reflexive property of congruence
3. ΔABK ≅ ΔBAJ . . . . AAS congruence postulate
__
The shared side is congruent with itself. Two angles are said to be congruent, and one of those is adjacent to the shared side. This is the setup for claiming AAS congruence.
_____
<em>Additional comment</em>
It is a good idea to be familiar with the ways triangle congruence can be claimed. There are basically 4 of them: SSS, SAS, ASA, AAS. The special case of two sides and an angle can only be claimed in the form of HL for right triangles.
In these abbreviations, S represents a side; A represents an angle. The order is important: SAS represents the case of the angle being between the two sides, for example.
First you convert them to 15/20 then 8/20 after that subract them, so 7/20
Answer:
12 is the answer thanks for asking in
Answer:
10.5625
Step-by-step explanation: