Angles in a triangle add up to 180
126.7+ 19= 145.7
180-145.7= 34.3 <--- answer
The surface area of rectangular solid is 208 square centimeter
The volume of rectangular solid is 192 cubic centimeter
<h3><u>Solution:</u></h3>
Given that rectangular solid has sides of 4 cm, 6 cm, and 8 cm
To find: surface area and volume of rectangular solid
Length = l = 4 cm
Width = w = 6 cm
Height = h = 8 cm
<h3><em><u>
The formula to find the surface area of a rectangular prism is:</u></em></h3>
Surface Area = 2wl + 2lh + 2hw
where w is the width, the l is the length, and the h is the height.

Thus the surface area of rectangular solid is 208 square centimeter
<h3><em><u>
The formula for volume of rectangular solid is:</u></em></h3>


Thus the volume of rectangular solid is 192 cubic centimeter
Answer:
3127 mm3
Step-by-step explanation:
You need to add two mixed numerals.
One is positive and one is negative.
To add a positive number and a negative number, first take the absolute value of both, making them both positive. Then subtract the smaller absolute value from the larger absolute value. Finally, the sign of the answer is the same sign as the number that has the larger absolute value.
The numbers are -4 5/8 and 2 1/8
Take absolute values:
|-4 5/8| = 4 5/8
|2 1/8| = 2 1/8
Subtract the smaller absolute value from the larger absolute value.
4 5/8 - 2 1/8 = 2 4/8 = 2 1/2
The greater absolute value is 4 5/8.
Since the number with the larger absolute value was -4 5/8, a negative number, the answer is negative, -2 1/2
-4 5/8 + 2 1/8 = - 2 1/2
Answer:
$2.50
Step-by-step explanation:
Shelley buys one pack of gum for $1
Price of gum: $1
Total amount of money spent: $1.00
Shelley buys another pack of gum for $0.50 more
1 + 0.50 = 1.5
Price of gum: $1.50
Total amount of money spent: $2.50