Answer:
∠ KAL = 90° (Proved)
Step-by-step explanation:
See the attached diagram.
As KLMN is a parallelogram, so ∠K + ∠ L = 180°
⇒ ............ (1)
Now, given that, and
So, ∠ AKL + ∠ ALK = 90° {From equation (1)}
Now, from Δ KAL, ∠ AKL + ∠ ALK + ∠ KAL = 180°
⇒ 90° + ∠ KAL = 180°
⇒ ∠ KAL = 90° (Proved)
Answer:
264 cm^2
Step-by-step explanation:
Area of a trapezoid = 1/2 (b1+b2) *h
The area of the large trapezoid
b1 = 14 b2 = 25 h = 10+12 = 22
A = 1/2 (14+25) *22 = 429 cm^2
The area of the unshaded trapezoid
b1 = 8 b2 = 25 h = 10
A = 1/2 (8+25) *10 = 165 cm^2
To find the area of the shaded region, take the area of the large trapezoid and subtract the unshaded trapezoid
429 - 165 =264 cm^2
Answer:
3
Step-by-step explanation:
three terms contain the variable X
So youve done good so far.
So picking up from : (x^2-x-12)-2(x-4)
-First distribute the (-2) to each factor.
(x^2 - x - 12) -2x + 8
-Then just add variables with the same exponent
x^2 - 3x - 4
Done!
Answer:
I can be little confident because if it was just 0.7 then it would be I am not confident at all. This decimal is more than 0 so it would be a little and not a lot.
Step-by-step explanation: