EOF Is A 80 Degree Angle FOB Is A 180 Degree Angle BOC Is A 90 Degree Angle.
Answer: 3•3•3•5•7
Step-by-step explanation:
Create a factor tree. See photo attached. (:
First let's find the length of the last side. We can do this by adding AB and BC together, then subtracting this amount from the perimeter of Triangle ABC, 22 cm.
ABC - (AB + BC) ⇒ 22cm - (8cm + 5cm)
22cm - 13cm = 9cm
The hypotenuse is always the longest side of a triangle, so we know that the side we figured out is the hypotenuse. Now we can use the Pythagorean Theorem to see whether the triangle is a right triangle.
Pythagorean Theorem: a² + b² = c², where a and b are legs and c is the hypotenuse.
If a² + b² do equal c², then the triangle is a right triangle.
8² + 5² = 9²
64 + 25 = 81
89 > 81
The triangle is not a right triangle, but we know that it is obtuse since a and b together are longer than c.
<em><u>The equation can be used to find the actual length of Gregory's room is:</u></em>
<em><u>Solution:</u></em>
Given that,
The scale that he uses is:
1 cm : 4 feet
On this drawing, the room is 3 cm long
Let "x" be the actual length of room
Therefore,
1 cm : 4 feet
3 cm : "x" feet
This forms a proportion. Therefore,
Therefore, Option C is correct
Given that,
Rob chose A as the correct answer. Which is,
But option A is wrong
So, Rob made a mistake in measuring the equivalent ratio, it should be
Answer:
7/18
Step-by-step explanation:
-4 × -7
9 × 8
28/72, which would simplify to 7/18
