Answer:
perimeter = 28.13 cm
Step-by-step explanation:
Calculate the length of a line drawn from A to C.
sin 85 = b/8, b = 7.97
cos 85 = c/8, c = 0.697
AC² =7.97² + (6 + 0.697)² = 63.52 + 44.85 = 108.37
AC = 10.41
Now you have a right triangle ADC with a known hypotenuse and one leg.
Using the Pythagorean theorem:
DC² = 10.41² - 5²
DC² = 108.37 - 25 = 83.37
DC = 9.13 cm
perimeter = 5 + 6 + 8 + 9.13 = 28.13 cm
Answer:
98 in.^2
Step-by-step explanation:
The lateral area is the sum of the areas of the 3 rectangular sides.
The triangular sides are the bases.
lateral area = 7.2 in. * 5 in. + 3 in. * 5 in. + 9.4 in. * 5 in.
lateral area = 36 in.^2 + 15 in.^2 + 47 in.^2
lateral area = 98 in.^2
Keeping in mind that 29/6 is greater than 4, is actually 4 and 5/6, so the amount we'll "add" will be a negative one.
