$\because \sin \theta = \cos \theta \\ \\ \therefore \: \sin \theta = \sin(90 \degree - \theta) \\ \\ \therefore \: \theta = 90 \degree - \theta \\ \\ \therefore \: \theta + \theta= 90 \degree \\ \\ \therefore \: 2\theta = 90 \degree \\ \\\therefore \: \theta = \frac{90 \degree }{2} \\ \\ \huge \orange{\boxed{\therefore \: \theta = 45 \degree}}\\ \\$

4 0

4 years ago

If there are 60 min in a hour, 60 sec in min and 10 counts in a second how much is half of a second

Sedbober [7]

There are 5 counts in half a second

8 0

3 years ago

Based on the drawing, Which can be used to prove PQR ≅ STV?

natta225 [31]

Answer:

Option (2) is correct.

Based on the drawing, SAS can be used to prove PQR ≅ STV

Step-by-step explanation:

We have to find the criterion by which the two given triangle can be prove similar from the given options.

Consider, the given triangles from the drawing given

ΔPQR and ΔSTV,

PR = VS (Given)

∠QRP = ∠TVS ( Given)

and, QR = TV (given)

Thus, PQR ≅ STV ( SAS CRITERION)

For SAS criterion , we need to show that two sides and the angle between those sides are equal .

Thus, option (2) is correct.

5 0

4 years ago

Answers are<br> 126in cubed<br> 377in cubed<br> 565in cubed<br> 1131in cubed

suter [353]

126

Step-by-step explanation:

hdhfgdhdgdhdhrgdgdgdhdgdhdhdh

3 0

3 years ago

5x and (6y+3) find it ​

5x and (6y+3) find it