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11 months ago

HELP PLSSS CAN SOMEONE SOLVE THIS

Mathematics

2 answers:

Naddika [18.5K]11 months ago

5 0

Answer:

Step-by-step explanation:

:a/sin(A) = b/sin(B) = c/sin(C)a, b, c being the sides, A, B, C being the opposing angles of the sides. and remember, the sum of all angles in a triangle is 180°.so, JL/sin(90) = KL/sin(72)JL/1 = KL/sin(72)KL = JL × sin(72) = 10 × 0.951056516... == 9.51056516... ≈ 10JK/sin(L) = JL/sin(90) = JLJK = JL × sin(L)angle L = 180 - 90 - 72 = 18°JK = JL × sin(18) = 10 × 0.309016994... == 3.09016994... ≈ 3

olya-2409 [2.1K]11 months ago

4 0

Step-by-step explanation:

we use the law of sine :

a/sin(A) = b/sin(B) = c/sin(C)

a, b, c being the sides, A, B, C being the opposing angles of the sides.

and remember, the sum of all angles in a triangle is 180°.

so,

JL/sin(90) = KL/sin(72)

JL/1 = KL/sin(72)

KL = JL × sin(72) = 10 × 0.951056516... =

= 9.51056516... ≈ 10

JK/sin(L) = JL/sin(90) = JL

JK = JL × sin(L)

angle L = 180 - 90 - 72 = 18°

JK = JL × sin(18) = 10 × 0.309016994... =

= 3.09016994... ≈ 3

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