Answer:
use distance formula and solve it
Step-by-step explanation:
this formula is in co ordinate geometry class 10 ncert book
Answer:
5 sqrt(10) square units
Step-by-step explanation:
The coordinates of the points A, B, and C are (-6,-2), (2,-8), and (-4,-6), respectively.
To find the area of a triangle, we can use the following formula:
Area of a triangle = 1/2 * base * height
We can use the distance formula to find the length of the base, which is AB:
Substituting the coordinates of A and B, we get:
Now, we need to find the height of the triangle. The height of a triangle is the perpendicular distance from a vertex to the opposite base. In this case, we can draw a perpendicular line from C to AB:
[Image of triangle ABC with line segment CD drawn perpendicular to AB]
The length of CD is the height of the triangle. We can use the distance formula to find the length of CD:
Now, we can find the area of the triangle:
Area of triangle ABC = 1/2 * base * height = 1/2 * 10 * sqrt(10) = 5 * sqrt(10)
Therefore, the area of triangle ABC is 5 square roots of 10 square units.
NOTEIFYOUFINDTHISANSWERUSEFULLINANYWAYTHENPLEASECONSIDERGIVE5STARTANDNOTFORGETTOMAEKASBRAINIST.THISSMALLSTEPSEEMSEASYBUTHAVEAGREATIMPACTONSOMEONE.
O 38.3 yd
O 30 yd
O 60 yd
O 42.4 yd
A) 9.2
B) 7.2
C) 4.8
D) 12.0
Answer:
B. 7.2
Step-by-step explanation:
radius=24÷2= 12
other line =19.2÷2=9.6 because line from centre bisects chord and is perpendicular to it
Therefore: X²=√ 12²-9.6² ( theorem of Pythagoras)
X=7.2
Answer:
32.45%
Step-by-step explanation:
To find the buying price as a percent of the selling price, we need to calculate the profit margin as a decimal first:
Profit margin = Selling price - Buying price
Profit margin = $59.95 - $40.50
Profit margin = $19.45
Now we can find the percent by dividing the profit margin by the selling price and multiplying by 100:
Percent = (Profit margin ÷ Selling price) x 100
Percent = ($19.45 / $59.95) x 100
Percent = 32.45%
Therefore, the buying price is 32.45% of the selling price.
A.54
B.18
C.36
D.27
Answer:
B. 18
Step-by-step explanation:
Base: 3-(-6)=9
Height: 6-2=4
Area =1/2bh = 1/2(9)(4)= 18 square units
B. 3/4
C. 24/18
D. 18/24
Answer:
slope is -1
Step-by-step explanation:
The line is decreasing from left to right, so the slope is going to be negative. If you count down, then move to the right, you would get one down, one to the right continually.
Answer:
y=-1x-2
Step-by-step explanation: