Answer:
∠ 1 = 65°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
5x - 10 is an exterior angle of the triangle, then
5x - 10 = 3x + 40 ( subtract 3x from both sides )
2x - 10 = 40 ( add 10 to both sides )
2x = 50 ( divide both sides by 2 )
x = 25
The sum of the 3 angles in a triangle = 180° , so
∠ 1 + 40 + 3x = 180°
∠ 1 + 40° + 3(25) = 180°
∠ 1 + 40° + 75° = 180°
∠ 1 + 115° = 180° ( subtract 115° from both sides )
∠ 1 = 65°
Answer with explanation:
If you want to Draw a Right Triangle Circumscribed about a circle, Draw a Right Triangle by taking Pythagorean Triplet.
Now, Draw Perpendicular Bisector of any of two sides.The Point where the two bisectors meet is center of the circle.
To find the center we have used the theorem, line from the mid point of the chord passes through the center of the circle.
From the center , that is at the point where the perpendicular bisectors meet,draw a circle Passing through three vertices of Right Triangle.
Answer:
187
Step-by-step explanation:
<em>16 less than 3 times means 16-3.</em>
<em>so when 16-3=13, hence there is 200 reptiles total. so what we do is subract the 200 and the 13. 200-13=187</em>
Answer: Maggie is 7 years old.
Step-by-step explanation:
Maggie = x years old
Maggie’s brother = 4x - 3 years old
x + 4x - 3 = 32
5x -3 = 32
5x = 35
x = 7
3x + 42-34
Step-by-step explanation:
3x+8 the answer is 3x+42-34 = 3x +8
