Answer:
Surface Area = 86 cm^2
Step-by-step explanation:
Given:
Triangle,
b = 8 cm
h = 9 cm
Rectangle,
l = 10 cm
w = 5 cm
To Find:
Surface Area = ?
Solution:
Surface Area = b x h /2 + l x w
Surface Area = 8 x 9 / 2 + 10 x 5
Surface Area = 4 x 9 + 50
Surface Area = 36 + 50
Therefore, Surface Area = 86 cm^2
PLZ MARK ME AS BRAINLIEST!!!
Answer:
.
Step-by-step explanation:

Let AB be a chord of the given circle with centre and radius 13 cm.
Then, OA = 13 cm and ab = 10 cm
From O, draw OL⊥ AB
We know that the perpendicular from the centre of a circle to a chord bisects the chord.
∴ AL = ½AB = (½ × 10)cm = 5 cm
From the right △OLA, we have
OA² = OL² + AL²
==> OL² = OA² – AL²
==> [(13)² – (5)²] cm² = 144cm²
==> OL = √144cm = 12 cm
Hence, the distance of the chord from the centre is 12 cm.
━═━═━═━═━═━═━═━═━━═━═━═━═━═━
Answer:
n = 1
Step-by-step explanation:
4/5 - 3/5 = 1/5n
collect like terms
-3/5 = 1/5n - 3/5n
-3/5 = 1 - 4/ 5n
-3/5 = -3/ 5n
cross multiply
-15n = -15
Divide both sides by -15
n = 1