Answer:
81.5
Step-by-step explanation:
<G and <H are congruent
<F and <I are congruent
so the last two angles in both triangles must also be congruent
this means that <K and <J are congruent
so we can create this equation: <K = <J
substitute the angles with what we know: 4
= 6 - 40
add 40 to both sides and subtract 4 from both sides: 40 = 2
you get: 20 =
root square on both sides: 
= 
you get: y ≈ 4.5
substitute this into one of the equations for a missing variable:
6 -----> 6 (4.5 x 4.5) - 40
6 ( 20.25) - 40
121.5 - 40
81.5
Answer:
neither because it's just fractions and numbers
Answer:
In triangle AB, A and B are acute angles so. AC and BC are right angles.
Sin A = 10/13
13 is the hypotenuse side and 10 is the opposite side.
To find cos A.
From pythagorean theorem:
Step-by-step explanation:
Answer:
The upper left
Step-by-step explanation:
The ratio of the height of the stick to the length of its shadow is equal to the ratio of the height of the tree to the length of its shadow.
x - the height of the tree
The tree is 36 ft tall.
