Wouldnt it be:
9 9
--- = -------- = 9
3-2 1
Watch this vid to see how to multiply: https://www.khanacademy.org/math/arithmetic/fractions/multiplying_fractions/v/multiplying-fractions
Answer:
The third angle measures 80°
Step-by-step explanation:
Let us solve the question
In any triangle
∵ The sum of the measures of the interior angles of a triangle is 180°
∵ The angle of triangles are ∠1, ∠2, and ∠3
∴ m∠1 + m∠2 + m∠3 = 180°
∵ Two of the angles of the triangle are 30° and 70°
∴ m∠1 = 30°
∴ m∠2 = 70°
→ Substitute them in the rule above
∴ 30° + 70° + m∠3 = 180°
→ Add the like terms
∵ (30 + 70) + m∠3 = 180
∴ 100 + m∠3 = 180
→ Subtract 100 from both sides
∵ 100 - 100 + m∠3 = 180 - 100
∴ m∠3 = 80°
∴ The third angle measures 80°
Answer:
The width of rectangle is cm and length is cm.
Step-by-step explanation:
Let,
Width of rectangle = w
Length of rectangle =
Perimeter of rectangle = cm
Perimeter = 2(Length + Width)
Dividing both sides by 4
Width of rectangle =
The width of rectangle is cm and length is cm.
Keywords: rectangle, perimeter
